William E. Sabin wrote:
The power wave concept is quite valid.
In fact, power waves are used almost exclusively in the field of optics,
the "other" EM waves. Since the phase of light is extremely hard to
measure, it is deduced from the irradiance (power) patterns. The same
deductive logic can be used with RF transmission lines (if anyone actually
cares about logical thought).
73, Cecil http://www.qsl.net/w5dxp
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